> #include <fstream>
> using namespace std;
> void main(){
> 	int Stan=0,Ollie=0;
> 	int x[200000],y[200000],cx,cy;
> 	int len;
> 	ifstream finput("input.txt");
> 	finput>>len;
> 	for(int i=1;i<=len;i++){
> 		finput>>x[i]>>y[i];
> 	}
> 	finput.close();
> 	cx=x[(len+1)/2];
> 	cy=y[(len+1)/2];
> 	for(i=1;i<=len;i++){
> 		if((x[i]>cx&&y[i]>cy)||(x[i]<cx&&y[i]<cy))
> 			Stan++;
> 		else if((x[i]>cx&&y[i]<cy)||(x[i]<cx&&y[i]>cy))
> 			Ollie++;
> 	}
> 	ofstream foutput("output.txt");
> 	foutput<<Stan<<' '<<Ollie;
> 	foutput.close();
> }
> 
> 哪里出问题了啊？